diff options
Diffstat (limited to 'llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp b/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp index 0ff440b..6272e2d 100644 --- a/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp +++ b/llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp @@ -284,7 +284,10 @@ static int readPrefixes(struct InternalInstruction *insn) { // it's not mandatory prefix // 3. if (nextByte >= 0x40 && nextByte <= 0x4f) it's REX and we need // 0x0f exactly after it to be mandatory prefix - if (isREX(insn, nextByte) || nextByte == 0x0f || nextByte == 0x66) + // 4. if (nextByte == 0xd5) it's REX2 and we need + // 0x0f exactly after it to be mandatory prefix + if (isREX(insn, nextByte) || isREX2(insn, nextByte) || nextByte == 0x0f || + nextByte == 0x66) // The last of 0xf2 /0xf3 is mandatory prefix insn->mandatoryPrefix = byte; insn->repeatPrefix = byte; |